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authorRichard Henderson <richard.henderson@linaro.org>2022-07-08 20:45:28 +0530
committerPeter Maydell <peter.maydell@linaro.org>2022-07-11 13:43:51 +0100
commit95aa4fdd58c50ba1d800bb106d73ef8a656e016e (patch)
tree100b9621a7cd275b9726a14dff0a06c9c7210556
parent78cb9776662adc62881fd5d7cc44cd925a3010c9 (diff)
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linux-user/aarch64: Clear tpidr2_el0 if CLONE_SETTLS
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20220708151540.18136-34-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
-rw-r--r--linux-user/aarch64/target_cpu.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/linux-user/aarch64/target_cpu.h b/linux-user/aarch64/target_cpu.h
index 97a477b..f90359f 100644
--- a/linux-user/aarch64/target_cpu.h
+++ b/linux-user/aarch64/target_cpu.h
@@ -34,10 +34,13 @@ static inline void cpu_clone_regs_parent(CPUARMState *env, unsigned flags)
static inline void cpu_set_tls(CPUARMState *env, target_ulong newtls)
{
- /* Note that AArch64 Linux keeps the TLS pointer in TPIDR; this is
+ /*
+ * Note that AArch64 Linux keeps the TLS pointer in TPIDR; this is
* different from AArch32 Linux, which uses TPIDRRO.
*/
env->cp15.tpidr_el[0] = newtls;
+ /* TPIDR2_EL0 is cleared with CLONE_SETTLS. */
+ env->cp15.tpidr2_el0 = 0;
}
static inline abi_ulong get_sp_from_cpustate(CPUARMState *state)